1621: Which one of the following pairs of materials serves as electrodes in chargeable batteries commonly used in devices such as torchlights, electric shavers, etc?
(a) Nickel and cadmium
(b) Zinc and carbon
(c) Lead peroxide and lead
(d) Iron and cadmium
1622: Who among the following drafted the resolution on Fundamental rights for the Karachi Session of Congress in 1931?
(a) Sardar Vallabhbhai Patel
(b) Dr. Rajinder Prasad
(c) Dr. B. R. Ambedkar
(d) Pandit Jawaharlal Nehru
1623: Two important characteristics of a hypothesis are that it should be testable and that it should be stated in a manner that it can be refuted. Which one of the following hypotheses, fulfils these characteristics ?
(a) Intelligent persons have good memory
(b) Some birds are animals
(c) Some businessmen are dishonest
(d) All men are mortal
1624: Building Kalyaana Mandapas was a notable feature in the temple construction in the kingdom of
(a) Chalukya
(b) Chandela
(c) Rashtrakuta
(d) Vijayanagara
1625: With which one of the following has the B. K. Chaturvedi Committee dealt?
(a) Review of Centres-States relations
(b) Review of Delimitation Act
(c) Tax reforms and measures to increase revenues
(d) Price-reforms in the oil sector